Shelf joint



FIG. 1 is a perspective view of a shelf joint showing my new design;

FIG. 2 is a front elevation view thereof, the rear elevation view being the same image;

FIG. 3 is a left side view thereof, the right side view being the same image;

FIG. 4 is a top plan view thereof, the bottom plan view being the same image;

FIG. 5 is an environmental perspective view thereof; and,

FIG. 6 is an enlarged view of the shelf joint taken from indication circle 6 of FIG. 5.

The broken line showing of the shelf in FIGS. 5 and 6 illustrates the environment of the claimed design and forms no part thereof. 

CLAIM The ornamental design for a shelf joint, as shown and described. 